[lvs-users] 2 Quick Questions

Robinson, Eric eric.robinson at pmcipa.com
Tue Oct 30 23:01:59 GMT 2007


> oops. you're using LVS-NAT. There is no VIP on the realserver, 
> only the RIP. What other IP is there to test? 

I said I was using LVS-nat because all of my ldirectord.cf entries
include the "masq" directive. I may be mangling my terms. Just because
I've been sucessfully using LVS/ldirectord for a year on a national
scale doesn't mean I know how to talk about it. :-)

My load-balancer computer has about 60 entries like this:

# Virtual Server for tomcat(site001), Outside to Inside
virtual=192.168.5.100:3001
        real=192.168.10.61:3001 masq
        real=192.168.10.62:3001 masq
        service=http
        request="/checkup.html"
        receive="site001_tomcat_is_up"
        scheduler=lblc
        protocol=tcp
        checktype=3
        persistent=360

My question really was this: is there a fixed limit to the number of
these entries that LVS/ldirectord will support, or is it just limited by
system resources? I assume it is the latter. If so, then do you think I
am likely to see performance bottlenecks at some point soon? Right now
everything is fine, but I'm concerned about the ol'
straw-that-breaks-the-camel's-back syndrome.

--
Eric Robinson


Again, the annoying server-appended disclaimer...




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